Ok, update. I decided to loosen the lock nuts on the SPC camber arm, and rotate the center adjuster a bit. Waa laa, the axle turned with what I would consider normal resistance. When I went to remount the rotor and spacer, and used a couple of lug nuts to tighten it down in preparation for remounting the caliper, the axle would not turn again. The act of tightening the rotor agains the hub is causing the axle to freeze up???
I didn't even get to remounting the caliper, so I don't know if that's and interference fit still, but it obviously isn't the main source of the axle being hard to turn. I can't figure out what it is about tightening the rotor that's doing it, but I do hear the slight "popping" of metal as I tighten the lug nuts up, as if the rotor is being torqued somewhat.
Any ideas??
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